Automatic weighing apparatus



April 13 1926. 1,580,669

C. NAGEL AUTOMATIC WEIGHING APPARATUS Filed March 19, 1924 2 Sheets-Sheet 1 (liar 51.1

A ril 13 1926. 1,580,669

I Q'NAGEL AUTOMATIC WEI GHING APPARATUS Filed March l9. 1924 2 Sheets-Sheet 2 dnreofoi: Carl Jyel a, 44m llama/ um hr ll lama:

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llatented ,Apr, 1 3, 192 6. 4

UNITED- STATES- CARL NAGEL, or emnsmnnonn, HEAR nnunswrcx', Gm.

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Application filed March 19, 1924. Serial No. 700,855.

Be it known that I, CARL NAGEL, englnee'r, a citizen of Germany, residing at Ghesmarode, near-Brunswick, Germany, have invented certain'new and useful Improvements in Automatic Weighing Apparatus (for which I have filed application in Germany, March 29, 1923), of which the following is a specification,

My invention relates to automatic weighing a paratus, and more particularly in weighing apparatus of the type in which a subsidlary weight is providedwhich tern or'arily-counteracts the main weight, elther or compensating the flow of the material .being weighed or for dividing the weighing operation into two steps one for rough I weighing and the other for accurate weigh- The object of the improvements is to provide a weighing-apparatus of this type which is simplein construction, and with this object" in view my invention consists in the lever carrying the subsidiary weight on the scale beam and so that it can be set at any time into inoperative posi-' tion-in-whichit'does not act on the beam. For the purpose-of explaining the invention two examples embodyingthe same have been shownin the accompanying drawings, in which the same letters of reference have been used in all the views to indicate cor-.

I responding parts. In saiddrawings fication, and

- fication shown in F 3.

' --In thev example.

' lugs n and the Fig. Lis an elevation showin'g the weigh- 2 IS a top plan view'thereof,

Fig. 3 is an elevation showing a modiplan view of the modiown in Figs-'1 and 2 the weighing gpparatus consists of uprights up each form l ceased bearing i, fitted therein, which bearings provide supports for the knife edges-c of a scale beam. As shown the scale beam consists oftwomembers k and In .connected with each other by, a shaft k',.and it carries a scale an o and a. weight 7). The

I arings tare elongated beyond the knife blades 0 and the rojeeting pprtions rovide supports for lmi e blades 9 0 arms Fig. 4 is a: topby abar Z. The arm' b extends beyond its fulcrum and its free and carries a subs1d1- aryweighth The barlengageithebeam;

of lugs it is ormed with recesses engage with 1:. ug n having a re encehas been and 6 connected with each other- 70 ,70 from the bottom side. at the points f so astocounteraet the main weight p. For accurate weighing the scale beam is relieved of the subsidiary weight by lifting the free end of the lever b so far that the-bar l is out of engagement with the scale beam.

In the modifications shown in Figs. 3 and 4 the construction of the weighing apparatus proper is the same as has been describedwith reference to Figs. 1 and 2. But

one side of the scale beam, and the bearings z of the frame on the lugs n are dispensed with. .As shown thearmk? is provided at opposite sides of its fulcrum with a pair a, a and the lever b is supported in, lieu of the frameb b, carrying the v subsidiary weight a lever b is provided at by the said lugs by bearing thereon respecof.'- To the frame m a subsidiary pivot bolt d is fixed which passes through a comparatively lar e hole of the, lever b and which is there ore out of frictional engagement with the bolt (i. As shown the bolt is disposed coaxially ofthe fulcrum of the beam, but it will be understood that exact alignment is not necessary, provided that the clearance .ofthe bolt d within the hole of the lever b is suflicient to avoid frictional engagement between the bolt and the lever. For relieving the scale beam of the pressure of the subsidiary weight It the lever b is elevated at its free end until it is out of position for engagement with the lugs a and a and bears on the bolt (2. Y Y To revent displacement of the lever b? d by the lugs a and a The lugs a and a maybe provided at any other suitable part of the scale beam.

While in describing the invention refermade to particular examples embod the same- 1 wish it to be understood my invention is not limited to the .-tively from the top and bottom sides there- "constructions shown in the drawings, and

that various may be made in the eral arrangement ofthe apparatus and the construdzion of-its'parts without de-' parting from the invention. i

Iclaimz e 1. In a weig apparatus, the combina: tion with the 821 530811! and weighing members connected therewith, of a lever attached to and swingwithitand ptedtobesetmpouonsaidbeamsoasto tion .clear "of the scale beam, and means connected with said lever counteracting the main weight.

2. In a weighing apparatus, the combination with the scale beam and weighing memadapted to act on said scale beam from the bottom side and to be set in position clear. of the same by lifting the one endof the lever.

3. In a weighing apparatus, the combination, with the scale beam, and weighing members mounted thereon, of a lever loosely engaging'said scale beam at opposite sides of the fulcrum thereof respectively from above and below, a relatively "fixed fulcrum for'said lever, and means acting on said lever and counteracting the main weight. 20

for said lever normally out of engagement therewith andadapted to engage the same when rocking the same out of engagement with the scale beam, and means acting on 30 said lever and counteractinl g, the main weight. v a In testimony whereof I have afiixed my signature.

CARL NAGEL.

25 above and below, a relatively fixed fulcrum 

